Abstract: A system and method for checking a ground via of control chips of a printed circuit board (PCB) provides a graphical user interface (GUI) displaying a layout of the PCB. The control chip has a plurality of ground pins. The computer searches for signal path routing of each ground pin and ground vias along each signal path routing of each ground pin. If there are any ground vias having the same absolute coordinates, the computer determines that the ground vias are shared by more than one ground pin.

Abstract: A device for the dimensional characterization of an object comprising a cylindrical surface which is symmetrical about a longitudinal axle. The device comprises at least six probes used to emit six pulsed waves, each probe being respectively oriented towards a separate measuring point of the cylindrical surface, and to collect the pulsed waves reflected at each measuring point. The device calculates a position of each measuring point, and calculates a characteristic curve of the cylindrical surface by interpolation from the corresponding position of each of the points.

Abstract: The invention provides a method for testing a semiconductor film, a manufacturing method of a semiconductor film, a laser crystallization method, a laser crystallization device, and a laser crystallization system, for testing a laser crystallized semiconductor film, which require less time, have sufficient reliability, are excellent in cost management and applicable to mass production. In the method for testing a semiconductor film having an improved crystallinity by irradiating an energy light, the tested semiconductor film is photographed in a dark field digital image and then the luminance of the digital image is calculated by a computer in a constant direction for testing.

Abstract: According to one aspect of the invention, a force measurement system includes a force measurement assembly, a motion base configured to displace the force measurement assembly, and an inertial compensation system configured to determine the inertial forces and/or moments resulting from the displacement of the force measurement assembly by the motion base. According to another aspect of the invention, a method for accurately determining the forces and/or moments applied to a surface of a force measurement device by a subject disposed thereon is disclosed, which includes the step of determining, by using an inertial compensation system, the inertial forces and/or moments resulting from the displacement of a force measurement assembly by a motion base. According to still another aspect of the invention, a force and/or motion measurement system having inertial compensation includes a motion acquisition system having a plurality of motion sensing devices configured to capture a subject's movement.

Abstract: A force measurement system having inertial compensation includes a force measurement assembly with at least one accelerometer configured to measure the acceleration thereof. According to one aspect of the invention, the force measurement system additionally includes at least one angular velocity sensor configured to measure the angular velocity of the force measurement assembly. According to another aspect of the invention, the force measurement system additionally includes a data processing device with a computer-readable medium loaded thereon that is configured to execute a calibration procedure for determining the inertial parameters of the force measurement assembly by utilizing the measured acceleration of the force measurement assembly while the force measurement assembly is subjected to a plurality of applied linear and/or rotational motion profiles. According to still another aspect of the invention, the at least one accelerometer is disposed on the force transducer.

Abstract: A method is for calculating an optical noise index of a signal light extraction apparatus that extracts signal light in a polarization plane by inputting signal light and a sampling pulse, different from the signal light in polarization plane by a given angle, to a nonlinear optical medium, and by passing light output from the nonlinear optical medium through an orthogonal polarizer having a polarization plane orthogonal to that of the signal light. The method includes calculating an output optical noise of the signal light extraction apparatus using a parametric gain of the nonlinear optical medium, a power of a quantum noise of the light having passed through the orthogonal polarizer, and a ratio of a power of the signal light and a power of the signal light sampled by the sampling pulse; and calculating an optical noise index using the output optical noise.

Abstract: A force feedback method for presenting a force sense to an operator by jetting gas or liquid from a nozzle of jetting means according to a position or an orientation of a receiver is disclosed. In the force feedback method, the receiver is provided with an inclined side surface unit shaped to be inclined, outward from a center part of the receiver, with respect to an axis line of the receiver, and the force feedback method provides a force, to the receiver, including a component perpendicular to a jet direction of the gas or the liquid, by jetting the gas or the liquid to the inclined side surface unit.

Abstract: System and method for performing a multiple tests on each of one or more units, where each of the tests requires a respective resource of a plurality of resources. A first test is performed on a unit using a first resource. During performance of the first test, a search is made for a second test, requiring a second resource, where the second resource is not currently being used. If the second test is found, the second test is performed on the unit, or a second unit, using the second resource, substantially concurrently with at least a portion of the first test being performed on the unit. Performing a test includes locking the respective resource to exclude use by other tests, including acquiring the resource, and unlocking the resource upon completion of the test, including releasing the resource for use in performing the respective test on another of the units.

Abstract: A device and method corrects time data based on a clock signal affected by jitter. The error due to jitter in a time measurement of an event in the clock signal is determined at the time of the event or as an average over a number of events. A measurement is made of a time dependent reference variable associated with a long-time constant device, such as a capacitor, which is relatively immune to localized jitter. The measurement may be a reading of the voltage across a charging capacitor. The measured value is compared to an expected value, and the time error is based on the result. The expected value may be stored or calculated from known charging rates of the capacitor. The error due to jitter of a time measurement is approximately linearly proportional to the difference in voltage between the measured and the expected values of the capacitor.

Abstract: Circuits and methods for measuring and characterizing random variations in device characteristics of semiconductor integrated circuit devices, which enable circuit designers to accurately measure and characterize random variations in device characteristics (such as transistor threshold voltage) between neighboring devices resulting from random sources such as dopant fluctuations and line edge roughness, for purposes of integrated circuit design and analysis. In one aspect, a method for characterizing random variations in device mismatch (e.g., threshold voltage mismatch) between a pair of device (e.g., transistors) is performed by obtaining subthreshold DC voltage characteristic data for the device pair, and then determining a distribution in voltage threshold mismatch for the device pair directly from the corresponding subthreshold DC voltage characteristic data.

Abstract: Changes, increase or decrease, in the body fluid are passively detected by using a single pixel, non-linear blind de-mixing procedure, which can be extended to general biomedical measurement and diagnosis instruments. More specifically, the single pixel, non-linear blind de-mixing procedure in applied on the hot spots of rheumatic arthritis or breast cancer detection problem using passive two-color infrared imaging, as well as to passively detect blockages in the body fluid circulatory system that might be of importance for coronary artery bypass surgery, diabetes and deep vein thrombosis. Other applications of the mentioned algorithm include a pair of cameras for video, a pair of antennas for cell phones, and in situ data gathering or imaging using multiple mode fiber-optical sensing, as well as selective amplification hearing aids through two-ear binaural processing for de-noise echo cancellation and signal classification.

Abstract: A Railroad Surveying and Monitoring System configured on a mobile platform for surveying, monitoring, and analyzing rail position and superstructure and terrain substructure of railroad tracks (20a,b) or other structures. The system employs two or more High Accuracy Differential Global Positioning System devices (110,112), ground penetrating radar devices (116), terrain conductivity instruments (118), optical cameras (124), and data receivers and processors (126), which in turn process, display, and store the data in a usable database. Precise coordinate data generated from a High Accuracy Global Positioning System provides both location data for subsurface sensors and surface sensors and rail position coordinates to monitor track displacements during track inspection in real time.

Abstract: A method for measuring unidirectional transmission properties, e.g., packet delay, delay-time fluctuations, and results derivable therefrom, in a telecommunications network. Test packets are transmitted from a first measuring computer via a measurement path to a second measuring computer. The first measuring computer records the departure time of the outgoing test packet. This clock time is transmitted along with the test packet. The second measuring computer records the arrival time of the test packet. In a subtraction operation between the departure time from the first measuring computer and the arrival time in the second measuring computer, the delay time of the test packet, i.e., the measuring result, is determined. To determine the measuring result, the two measuring computers are synchronized in time by satellite systems, e.g., GPS (global positioning system), in that the clock time is continuously transmitted to both measuring computers.

Abstract: A sensor apparatus of the present invention includes a failure diagnosis circuit, and a time point measuring unit for adding the time point information to an output concerning generation of the failure detection signal outputted from the failure diagnosis object section and an output concerning generation of the sense signal such that the output concerning generation of the failure detection signal is made to correspond to the output concerning generation of the sense signal using time point information in terms of time points. In the case of the failure diagnosis circuit determining abnormality of the failure diagnosis object section, the first output terminal outputs the sense signal added with the time point information at the time of occurrence of the abnormality and the sense signal added with the time point information after the time of occurrence of the abnormality, as a signal outside a range of a normal output voltage.

Abstract: A sensor apparatus of the present invention is provided with a failure diagnosis circuit for setting as a failure diagnosis object section at least any one of a drive circuit section, a detection device, a detection circuit section and a processing circuit section, determining whether the failure diagnosis object section is normal or abnormal, and outputting a failure detection signal from a second output terminal in the case of determining abnormality. It is configured such that a signal of a value outside a range of a normal output voltage is outputted from the first output terminal in the case of the failure diagnosis circuit determining abnormality of the failure diagnosis object section, thereby to improve reliability under abnormal condition.

Abstract: Disclosed is a method of signal detection. A received input signal is divided into a frame unit and each input signal present in a first frame and a second frame is transformed into a frequency signal. Then, first power spectrum information and second power spectrum information are computed utilizing the transformed frequency signal and a delta spectrum entropy value corresponding to a difference of the two computed power spectrum information is obtained. A predetermined input signal is included in a predetermined frame among the input signal after judging through comparing the delta spectrum entropy value with a critical value. Desired signal can be detected in a noisy environment including a noise signal by using the delta spectrum entropy value.

Abstract: A system, method and program product for processing irregularly occurring data events in real time. A system is provided for processing a stream of data events occurring over irregular time periods, including: a system for updating a running estimate each time a new data event is detected, wherein the running estimate is calculated based on a value associated with the new data event, an amount of time that elapsed since a previous data event was detected, and a previously calculated running estimate; and an analysis system that analyzes the running estimate after it is updated to identify a suspect data event value.

Abstract: The invention increases the fidelity of gas turbine engine module performance estimates that in turn enhance performance tracking and visibility. The methodology obviates input signal filtering since filtering may mask the onset and detection of a rapid measurement shift indicative of serious engine performance issues. The invention supports trend detection processes for timely detection, isolation and alerting of performance and engine system related faults.

Abstract: A system and method for monitoring and managing electrical power transmission and distribution networks through use of a deterministic, non-iterative method using an holomorphic embedding and algebraic approximants for determining the real-time load flow in a power generating system having an electrical grid. Such method may be employed for real-time or off-line applications for electric power systems reliability assessment, and is capable of determining whether or not a physical solution to the load flow problem exists, or if the system is in a state of voltage collapse.

Abstract: An apparatus providing a means for assessment of the integrity of insulated conduits, harnesses, cables, pipelines and other interconnection systems constructed with integral sensitized media, discrete sensors, and electronics providing a means for transforming sensed data into information and a means for communicating information for the purpose of understanding the location, degree and risk of damage and deterioration, and the probable causes thereof.